Water-heating system.



c. A. CARTWRIGHT; 7 WATER HEATING SYSTEM.

APPLICATION FILED APR. 23, 1908' 918,961. Patented Apr.20,190 9.

WITNESSES: m'mvron 5 UNITED STATES PATENT. OFFICE.

lHAPIII CARTWRIGIIT, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO JOHN E. CAPS,

1 OF CHICAGO, ILLINOIS. j

WATER-HEATING SYSTEM.

Specification of Letters Patent.

Patented April 20, 1909.

Application filed April 22, 1908. Serial No. 428,699.

,t ion of the invention, such as will enable t ers skilled in the art to which it appertains to make and use the same.

the water, the latter being used to feed the This invention relates to a novel construction in a water heating system, the object being to rovide a system whereby water in relative y great uantity is brought in direct contact with exhaust steam to absorb the heat of the latter and at the same time condense it, and consists in the features of construction and combinations of parts hereinafter fully described and claimed.

The accompanying drawing illustrating my invention shows the hot water tank and the exhaust steam hood in vertical section, the piping and other devices constituting a part ol the system being shown in elevation.

in practically all power plants it is the practice now of condensing the exhaust steam by means of water with which it is brought in direct contact and becomes admixed, the heat of the steam serving to heat boilers and sup )1 hot water service in the building. The lot water is contained in a special tank from which, generally, it is r r ained by gravity and in which a constant.

level is maintained or sought to be maintained in any well known manner. In all systems which, to my knowledge, are now' in general use only the water introduced to re:

lepish the. supply in the tank'at necessary intervals or where a constant drain takes lace, constantly replenishing the supply, is brought into contact'with and is heated by the exhaust steam. Such water is generally introduced from the service pipes, street main or well, and is relatively cold. Furthermore such water is brought into contact with and is heated only at the time that it is introduced, hence, any interruption or variation in the constancy of the supply is re- I flected iii-variations in temperature of the replenishing water and in resultant loss of' steam.

The object of my talesont invention is to provide simple and e ient means for maintaining a constant supply of water through the condenser irrespective of the consumption of the hot water whereby 1 cfl'ect not only great economy of steam but also provide a supply of water of very much higher and mor: uniform temperature than is supplied by other systems.

A further object of my invention is to rovirle means for purifying said water by f' tration and more particularly by maintaining recting its flow ast-o cause and permit recipitation of certain mineral ingredients cld in solution or in suspension in solid form in l the water whereby greater cleanliness of boilers is assured and which further serves to oses. p My said system includes the condenser 'A of any suitable construction into which exhaust steam passes from the ipe B, said steam being caused to circu ate oil therefrom before contact wit the condensing water, such means being variously exemplified in systems now in use. Water is introduced into the upper portion of the condenser and flows into the path of steam. endcayoring to find its way out, this being likewise accomplished in any suitable man- 'ner. In the instance illustrated the steam enters the lower portion of the condenser ,cause the water and steam to take a. zig-zag course through the annular space betweenthe inner wall of the cup and said outlet pipe D. The water enters the annular space between the two walls of the cup C-&

wall thereoi and is rained from said horizontally therein so as to se arate the.

outlet pipe being equ ped with deflecting. I plates E-- and. which serve to the temperature thereof so high and so disoften the water this better adapting it for use in laundries and for all cleansing pur- -A and is deflected horizontally so as to V and overflows the up er edge of the inner throu h the pipe -G-.' The. latter is'c'on necteil at its delivery end with a small tank H disposed ina filtering box -I-'-- contained in the bottom of the hot'water tank 1 --'--J-, saidtank -H being perforated sol P11 that water passing .therefrom must pass through the filtering material in the said box -lbefore {K mixing with the body of watercontainedin said tank J. ater is drained from the latter through the service pine K- equipped at its \LZ'lOUS outlets with valves and said pipe -K is connected between its ends with the inlet end of a punn; L b means of the pipe M-, the dcliver entl of said pump being connected with the pipe N entering the annular space between the double walls of the cup --C. connecting with the city main, we 1 or other source of supply, is connected with said pi e -.\lbetween the ends of the latter, tie alve P- interposed in the ,ipe O belng operatively connected witi the lever Q carrying the float R and constitoting substantially a ball-cock control'for the water supply. The said pump is maintained constantly in operation thus not only maintainin the supply to the condenser constant but also causing the water to be again and again brought into contact w ith and condense the exhaust steam thereby heating the entire body of water contained in the tank to a substantially uniform and hi h temperature, the latter being preferab y maintained suiliciently high to cause precipitation of magnesia and other mineral substances whereby the water is softened.

The manner of returning the water to the tank -J is also an important feature of the invention for the reason that the hottest water is'caused to enter at the lower portion at the said tank and is so distributed and ictardcd by the filtering material through which it passes as to obviate undue agitation of the water body, such agitation being a preventive to settlement to the bottom of any solids contained in the water including the minerals solidified by the heat. To further prevent settling or preci itation of solids the said tank J is divi ed by partition walls S and -T-, the former resting on the bottom and extending about one-half the height of the tank and the other depending and bein ollset from the wall b so as to provide a slot U through which the water is forced to pass from the admission to the outlet chamber of the said tank .-J, said walls --S- and -T- being preferably relatively so disposed as to cause a downward flow of the water into the outlet chamber, such direction of flow being commonly resorted to for thepurpose of promoting precipitation.

[,clann as m invention:

1. A water mating syslmn c mprising a steam condensing chamber, a storage tank f r water, connection between said storage tank and said colltltnsl-l', a pump inlerposml lll ahl connection, admin pipe l ading from b aid colnlt'usl'l' to said storage tank, said The supply pipe Q. v

pump serving to maintain an excessive sup ply of water to said condenser irrespective of volume or pressure of the exhaust steam, whereby condensation of all steam and a uniform temperature of all water in the storage tank is assured.

2. A water heating s 'stem comprising a. steam condensing chamber, a storage tank for water, connection between said storage tank and said condenser, a pump interposed in said connection, a drain pipe leading from the said condenser to the bottom portion of said storage tank, said. pump serving to maintain an excessive supply of wat 'ato said condenser irrespective of volume or pressure of the exhaust steam, whereby condensation of all steam and a uniform temperature of all water in the storage tank is assured.

3. A water heating system comprising a condenser for exhaust steam, a storage tank for water, a pipe leading from the bottom of the storage tank to'the condenser, a pump interposed in said pipe, 2. supply pipe connected with saidpipe, a valve in said simply pipe a float actuated by variations in the water level said tank controlling said valve, and a drain pipe leading from the said condenser to said tank 4. 'A water heating system comprising a condenser for exhaust steam, a storage tank having an outlet to the service pipes to supply hot water, a pipe connecting said outlet with said condenser, a pump interposed in said pipe, :1 supply pipe connecting with said pipe, and a drain pipe leading from said condenser to said storage tank.

5. A water heating system comprising a condenser for exhaust steam, a storage tank for water, a pipe leading from the bottom of the storage tank to'the condenser, a pump interposed in said pipe, at supply pipe connected with said pipe, a valve in said supply pipe a. float actuated by variations in the water level in said tank controlling said valve and a drain-pipe leading from the said condenser to the bottom portion of said tank.

'6. A water heating system comprising a condenser for-exhaust steam, a storage tank for water, a pipe leading from the bottom of the storage tank to the condenser, a. pump interposed in said pipe, a supply connected with said pipe, a valve in said supply pipe, 11 lloat actuated by variati ns in the water lev l of said tank controlling said valve, and a drain-pipileading fr m the said condenser to the bottom portion of the said tank and a partition wall in said tank between the inlet thereto and outlet thereof provided with a slot between its ends through which the water passes to the outlet.

7. '1\ water heating system (".unprising a condenser for exhaust steam, a storage tank for water, a pipe leading from a point adjacent the bottom of said tank to said coni denser,.a pump interposed in said pipe, and

ward the outlet to accelerate precipitatien of N maintaining a constant supply of water to solid particles suspended therein.

I said condenser n drain-pipe leading frem the said condenser tn 1), point adjacent the bot- In testimony whereof I have signed my tom of said tank, a partitiun wall in said tank name in the presence of two subscribing witbetween the inlet and outlet therelrmn and l nesses.

resting on the bottom uf said tank, z LI1(l a defiectm" well in the 11 mar )erunn ul smd tank o 0 1 1 u udgucent sand piLlllUUll Wall, .Satltl deflecting \Vit nesses wall serving to break the How of water and lilcn. P. Comx, 10 deflect the same (lUWIHYitl'tllY as it passes to- RUDOLPH WM. Lo'rz. 

